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The medication is stored at 2 to 8 degrees Celsius from production through warehouse storage
Results Later Period Baseline Demographic and Clinical Characteristics SGLT2i Cohort After applying all inclusion and exclusion criteria, the new-user cohort included 94,080 patients with a mean age of 73.1 (SD 8.9) years, of whom 47.0% were female, 56.1% were white, 46.0% had obesity, and 26.0% were current smokers (Table 1)
Unopened vials: Store at controlled room temperature (20-25 degrees C / 68-77 degrees F) Protected from light in original packaging Good until manufacturer-printed expiration date (typically 18-24 months from production) Do not freeze freezing can compromise the glass vial seal and alter preservative distribution After first puncture: Refrigerate at 2-8 degrees C (36-46 degrees F) 28-day use window from first needle puncture per Pfizer/Hospira prescribing information Swab the rubber stopper with 70% isopropyl alcohol before every puncture Label the vial with the first-puncture date Discard after 28 days regardless of remaining volume or visual appearance What shortens the 28-day window: Room-temperature storage after puncture (can reduce effective window to 7-10 days) Excessive puncture count (30+ punctures accelerate preservative depletion) Poor aseptic technique (skipping alcohol swabs introduces surface contamination) Temperature cycling (moving between fridge and room temp repeatedly) For a deep dive on shelf life, degradation signs, and the science behind the 28-day rule, see How Long Does Bac Water Last After Opening
Its easy to store and keeps your carnitine powder fresh for maximum long shelf life
This medication is available by prescription only following a medical evaluation
